Boiler-setting



(No Model.) -3 Sheets-Sheet 1.

F. LINDRUMV BOILER SETTING.

No. 406,357. Patented July 2., 1889.

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(No Model.) 3 Sheets.-Sheet 2.

F. LINDRUM.

BOILER- SETTING,

Patented July2, 1889.

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UNITED STATES FRIEDERICK LINDRUM,

PATENT OFFICE.

OF CHICAGO, ILLINOIS.

BOILER-SETTING SPECIFICATION forming part of Letters Patent No. 406,357,dated July 2, 1889.

Application filed May 10, 1888- To all whom it may concern:

Be it known that I, FRIEDERICK LINDRUM, a citizen of Prussia, residingat Chicago, in the county of Cook and State of Illinois, have lnventedcertain new and useful Improvements in Boiler-Settings; and I do herebydeclare the following to be a full, clear, and exact description of theinvention, such as will enable others skilled in the art to which itappertains to make and use the same.

My invention relates to boiler-settings of steam-generating boilers.

It has for its object to provide an efficient and economical means forsustaining the boiler and applying the furnace heat thereto.

It consists in the construction hereinafter described, and embraced inthe claims.

The accompanying drawings show my improvements in boiler-settings alongwith my improvements in a skimmer forming a division, filed'July 27,1888, Serial No. 281,215, of this application, this application relatingto my improvements in boiler-settings, irrespective of other andincidental features that may be shown or used therewith.

Figure l in the accompanying drawings is a plan view of a tubular boilerand its setting, the latter being partly broken away and the upperportions removed to more fully disclose the planes below. Fig. 2 is avertical longitudinal section of the same. Fig. 3 is a view, partly infront elevation and partly in section, on the line 3 3 of Fig. 1.

Like letters of reference refer to like parts throughout thespecification and the drawings.

The boiler-shell A may be of the ordinary horizontal form or somewhatvaried therefrom, but is preferably shown as of the ordinary horizontalpattern, with the usual steamdome a and man-hole plate a.

The boiler is shown as set in brick-work or masonry of any kind, thefire-box F, ash-pit G, bridge-wall H, combustion-chamber I, and backchamber J being of the usual construction, and the course of theproducts of combustion from the fire-box to the back chamber and intothe rear ends of the tubes being indicated by the arrows.

Serial No. 278,464. (No model.)

Instead of having the smoke-stack or chimney at the front of the boilerover the front chamber K, as is usual in boiler-settings of this kind,and in which no further benefit can be derived from the products ofcombustion, which immediately pass from the front end of the flues intothe stack, I prefer to construct my setting with return-fines L alongeach side of the boiler, as shown, uniting them at the chimney M in therear of the back chamber. Under this construction I am enabled toutilize more of the heat than would be the case if it passed directlyinto a'chimney at the front, for, as indicated in Fig. 3, the sides anda portion of the top of the boiler-shell are exposed to the action ofthe heat in the side fines L.

The iron boiler-front N has an arched rib n, spanning the front of thefire-box and extending inwardly to a point below the front end of theboiler, to sustain the section walls or arches nateach side. From thetop.of this arched rib a vertical rib n extends to the top arch 7c ofthe front chamber K, dividing it into two parts, each connecting withthe chimney through its own return side flue L. The boiler-front isprovided with the usual ash-pit doors g, fire-doors f, front chamber orfine doors k, and sight-hole doors I for the inspection of thereturn-lines L.

At the rear of the boiler-setting, in the side wall, is a man-hole doorj, through which the attendant may enter to clean out the back chamber.

I also place a damper in the chimney to aid in retarding combustion whendesired.

Having thus described my invention, what I claim as new, and wish tosecure by Letters Patent, is

1. The combination of the tubular boiler wit-h the front chambers formedby the arch ed and vertical ribs, the back chamber, the side fluesconnecting the front chambers with the chimney, and the-fire-box andcombustionchamber, substantially as herein set forth.

2. The combination, substantially as hereinbefore set forth, of a boilerwith a boilerfronthaving a vertical rib and a rib joining the verticalrib at its bottom and extending inwzndly under the boiler, whereby twofront chambers are formed.

3. The combination, substantially as hereinbefore set forth, of a boilerand a boiler- 5 front having arib spanning the front of the fire-box,and a vertical rib extending upward from the rib spanning the front ofthe fire-box.

In testimony whereof I affix mysignature in presence of two witnesses.

FRIEDERICK LINDRUM.

W ibn esses:

CHARLES WESTON, LOUIS BLOCK.

